TM 5-3810-307-24-1-1
AXLE OSCILLATION SYSTEM
DESCRIPTION
The axle oscillation system allows both the front and
electrical swivel and the micro switch is mounted on
rear axles to oscillate under certain conditions. The
the boom rest.
system consists of four oscillation lockout cylinders,
two double solenoid valves, an area definition switch,
The two double solenoid valves control hydraulic oil
and a micro switch. An oscillation lockout cylinder is
flow between the oscillation lockout cylinders. One
mounted at each end of both axles. The double
valve controls flow between the two front cylinders and
solenoid valves are located at the center of the carrier
the other valve controls flow between the two rear
frame, one forward of the swivel and one to the rear of
cylinders. The double solenoid valves are controlled
the swivel. The area definition switch is located on the
by the area definition switch and the micro switch.
THEORY OF OPERATION
SUPERSTRUCTURE OVER FRONT.
SUPERSTRUCTURE OVER REAR.
With the superstructure facing the front and the boom
With the superstructure facing directly over the rear,
in the boom rest, the micro switch on the boom rest is
the area definition switch on the electrical swivel
closed. When closed, the micro switch activates both
activates the double solenoid valve that controls the
double solenoid valves allowing the front and rear
front oscillation lockout cylinders allowing the front axle
axles to oscillate. As soon as the boom is raised from
to oscillate. As soon as the superstructure rotates
the boom rest, the contacts on the micro switch open,
more than 6 degrees in either direction from directly
thus deactivating the solenoid valves and locking both
over the rear, the area definition switch deactivates the
axles.
double solenoid valve and causes the front axle to
lock.
